Cita APA

Koontz, H., & Weihrich, H. (1990). Essentials of management (5th ed.). McGraw Hill publishing.

Chicago Edition Citation

Koontz, Harold, i Heninz Weihrich. Essentials of Management. 5th ed. NewYork: McGraw Hill publishing, 1990.

Cita MLA

Koontz, Harold, i Heninz Weihrich. Essentials of Management. 5th ed. McGraw Hill publishing, 1990.